dianfu opened a new pull request #11342: [FLINK-16483][python] Add Python building blocks to make sure the basic functionality of vectorized Python UDF could work URL: https://github.com/apache/flink/pull/11342 ## What is the purpose of the change *This pull request add the Python building blocks to make sure the basic functionality of vectorized Python UDF could work.* NOTE: This PR is based on #11341 ## Brief change log - *Changes in udf.py to make sure we can define vectorized Python UDF* - *Introduce ArrowCoder/ArrowCoderImpl for Arrow data serialization/deserialization* ## Verifying this change This change added tests and can be verified as follows: - *Added tests test_pandas_udf* ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (yes, python dependency pyarrow and pandas) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable)
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